Vehicle Emergency Call Rollover Detection Using GPS Altitude

Solution Overview

Problem

Conventional vehicle emergency call apparatuses fail to automatically make emergency calls during rollover accidents when the airbag is not deployed or malfunctions, as they rely on airbag operation for triggering the call.

Innovation Solution

An apparatus and method utilizing a GPS system to calculate longitude, latitude, and altitude values to determine if a vehicle is rolled over, allowing for automatic emergency calls to be made to a rescue center without additional sensors, using pre-stored installation heights and terrain features for accurate determination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the emergency call apparatus relies on airbag operation to determine whether to make an emergency call, then the system structure remains simple, but the apparatus fails to detect rollover accidents when the airbag is not deployed or malfunctions

Engineering Contradiction:

Improveemergency call detection reliabilityVSAvoidsensor system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent makes the existing GPS receiver perform multiple functions: it not only provides location information but also detects rollover accidents by analyzing changes in altitude, longitude, and latitude data. This eliminates the need for additional dedicated rollover detection sensors while improving detection reliability across different accident types including rollovers that airbags may not detect

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system uses the GPS receiver's own capability to detect rollover events by monitoring its positional data. The GPS receiver essentially monitors itself for abnormal movement patterns indicative of rollover, eliminating the need for separate detection mechanisms and reducing overall system complexity while enhancing reliability

Inventive Principle:

Principle #25Self-service

2Reliability

If additional sensors are installed to detect rollover accidents independently of airbag operation, then the detection capability is improved, but the device complexity and cost increase

Engineering Contradiction:

Improverollover detection capabilityVSAvoidsensor quantity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent makes the existing GPS receiver perform multiple functions: it not only provides location information but also detects rollover accidents by analyzing changes in altitude, longitude, and latitude data. This eliminates the need for additional dedicated rollover detection sensors while improving detection reliability across different accident types including rollovers that airbags may not detect

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system uses the GPS receiver's own capability to detect rollover events by monitoring its positional data. The GPS receiver essentially monitors itself for abnormal movement patterns indicative of rollover, eliminating the need for separate detection mechanisms and reducing overall system complexity while enhancing reliability

Inventive Principle:

Principle #25Self-service

3Adaptability or versatility

If the emergency call apparatus uses only airbag operation status for emergency call determination, then the system operates reliably for collision accidents, but it cannot respond to rollover accidents where the airbag is not operated

Engineering Contradiction:

Improveaccident type coverageVSAvoidaccident detection information

Core Design Contradiction:

Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent makes the existing GPS receiver perform multiple functions: it not only provides location information but also detects rollover accidents by analyzing changes in altitude, longitude, and latitude data. This eliminates the need for additional dedicated rollover detection sensors while improving detection reliability across different accident types including rollovers that airbags may not detect

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system detects rollover accidents by monitoring changes in GPS parameters (altitude, longitude, latitude) over time. By analyzing the rate and pattern of these parameter changes, the system can distinguish rollover events from normal driving conditions, thereby expanding accident detection capability without adding sensors

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20230269570A1Apparatus for vehicle emergency call and method for the same

Publication Date: 2023.08.24 HYUNDAI MOBIS CO LTD

AI summary

An apparatus for a vehicle emergency call that makes an emergency call when a vehicle is rolled over. The apparatus for a vehicle emergency call includes: a longitude and latitude calculation unit configured to calculate longitude and latitude values of a positioning sensor; an altitude calculation unit configured to calculate a measured altitude; a rollover determination unit configured to determine whether the vehicle is rolled over; and a communication unit transmitting an emergency call message to an emergency rescue center.